Related Experiment Video
Updated: Aug 13, 2025

10:40
CRISPR Gene Editing Tool for MicroRNA Cluster Network Analysis
Published on: April 25, 2022
2.5K
The Human Pre-miRNA Distance Distribution for Exploring Disease Association
1Institute of Statistics, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan.
International Journal of Molecular Sciences
|January 21, 2023
Summary
MicroRNA (miRNA) biomarkers show high similarity in associated diseases. Analyzing precursor miRNA (pre-miRNA) sequences provides a novel method to explore these disease associations and similarities.
Area of Science:
- Molecular Biology
- Bioinformatics
- Genomics
Background:
- MicroRNAs (miRNAs) are crucial regulators of gene expression involved in cell differentiation, development, and disease mechanisms.
- miRNAs serve as valuable biomarkers for various diseases, and their phylogenetic analysis aids in understanding disease and viral associations.
- Previous studies utilized mature miRNA sequences for distance distribution analysis to assess biomarker similarity.
Purpose of the Study:
- To derive and analyze the distance distribution based on human precursor miRNA (pre-miRNA) stem-loop sequences.
- To investigate the similarity of miRNA biomarkers for associated diseases and vaccines using pre-miRNA sequences.
- To establish pre-miRNA distance distribution as a novel approach for exploring disease associations.
Main Methods:
- Utilized 1917 human miRNA stem-loop sequences from the miRBase dataset.
- Derived distance distributions based on human pre-miRNA stem-loop sequences.
- Examined the similarity of pre-miRNA biomarkers for associated diseases and vaccines.
Main Results:
- The study presents the first derivation of distance distribution based on human pre-miRNAs.
- Analysis revealed high similarity among miRNA biomarkers for associated diseases, consistent with mature miRNA findings.
- The similarity of pre-miRNA biomarkers was effectively examined for diseases and vaccine associations.
Conclusions:
- Precursor miRNA (pre-miRNA) sequences offer a potentially more informative basis for assessing miRNA similarity compared to mature miRNAs.
- The derived pre-miRNA distance distribution is a feasible tool for exploring disease associations.
- This approach advances the understanding of miRNA roles in disease pathogenesis and biomarker discovery.
Related Concept Videos
Genome-wide Association Studies-GWAS
13.8K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
13.8K
MicroRNAs
3.1K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.1K

